std::basic_string<CharT,Traits,Allocator>::rbegin, (3) - Linux Manuals

std::basic_string<CharT,Traits,Allocator>::rbegin,: std::basic_string<CharT,Traits,Allocator>::rbegin,

NAME

std::basic_string<CharT,Traits,Allocator>::rbegin, - std::basic_string<CharT,Traits,Allocator>::rbegin,

Synopsis

reverse_iterator rbegin();                               (until C++11)
reverse_iterator rbegin() noexcept;                      (since C++11)
const_reverse_iterator rbegin() const;           (1)                   (until C++11)
const_reverse_iterator rbegin() const noexcept;      (2)               (since C++11)
const_reverse_iterator crbegin() const noexcept;         (3)           (since C++11)

Returns a reverse iterator to the first character of the reversed string. It
corresponds to the last character of the non-reversed string.

range-rbegin-rend.svg

Parameters

(none)

Return value

reverse iterator to the first character

Complexity

Constant

Example

// Run this code

 #include <iostream>
 #include <algorithm>
 #include <iterator>
 #include <string>

 int main()
 {
  std::string s("Exemplar!");
  *s.rbegin() = 'y';
  std::cout << s << '\n'; // "Exemplary"

  std::string c;
  std::copy(s.crbegin(), s.crend(), std::back_inserter(c));
  std::cout << c << '\n'; // "yralpmexE"
 }

Output:

 Exemplary
 yralpmexE